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The structural material for aluminum electrolytic capacitors and their impacts on sound quality are summarized in Table 1. A skillful material combination is essential in providing superior sound performance.

Table 1

  Structural Material Material Characteristics Effect on Capacitor Characteristics Effect on Acoustics
Basic Material Electrode foil, forming, etching Heat resistance ESR
  • Generally, the sound quality improves at lower multiplier values.
Electrolyte Conductivity, viscosity ESR tanδ
  • Reduces the sense of distortion in the sound and increases the sense of clearness.
Electrolytic paper Density Thickness ESR, tanδ
Manila: good
Craft: poor
  • Improvements in reverb, which requires a large amount of information.
  • Reduces reverb, which improves the attack.
Ceramic content
  • Improves the sound field, the clarity, and the sharpness.
Silk fiber content
  • Improves the midrange responsiveness and low range richness there in
Lead lines Distortion ESR CP Lines
  • Rough but strong
OFC Lines
  • Sweet high region
Case materials sleeve Characteristic vibrations Vibration characteristics
  • Stabilization through Frost processing and through vibration-absorbing alloys, etc.; improved sensitivity, changes to sound quality through the sleeve materials and the dye that is included.
Seal rubber Characteristic vibrations Vibration characteristics Life expectancy EPT
  • The sense of rhythm comes through powerfully.
  • Goes deep, with stable orientation
Manufacturing Method Number of windings L component Induced voltage
  • Generate the sound through partitioned coils, etc. to improve resolution.

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